Converted file size is 823meg, is this too big?

[Speed Racer]

I have a file that when converted to vcd format is just over 823 meg in size. The file in minutes is around 78 minutes in length. When i burn it to vcd with nero it seems to burn fine but when i play it all i get is a blue screen with nothing, no sound, nothing! It acts like its playing there is just a blue screen is all. Im using memorex medium that says its 700meg or 80minutes.
Im guessing that even though my file is only 78 minutes its over the 700meg disc size. Has anyone else come had this issue before? I always had figured that if nero would accept it that it was good to burn.

[permalicious]

I've had no problem with burning and watching a video of about 820MB. I thinks that thats about the limit though..